Video: Dab tsi yog lub cev muaj zog ntawm basalt?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Basalt yog nplua nuj nyob rau hauv hlau thiab magnesium thiab yog tsim los ntawm olivine, pyroxene, thiab plagioclase. Feem ntau cov qauv yog compact, nplua-grained, thiab iav. Lawv tuaj yeem yog porphyritic, nrog phenocrysts ntawm olivine, augite, lossis plagioclase. Qhov uas tshuav los ntawm cov pa npuas tuaj yeem muab tau basalt ib coarsely ntxeem tau kev ntxhib los mos.
Kuj paub, dab tsi yog cov khoom ntawm basalt?
Basalt yog cov xim tsaus nti, nplua-grained, igneous pob zeb tsim los ntawm plagioclase thiab pyroxene minerals. Nws feem ntau tsim los ua pob zeb extrusive, xws li lava ntws, tab sis tuaj yeem tsim hauv lub cev me me, xws li lub qhov dej tsis muaj zog lossis ib lub sill nyias. Nws muaj ib tug muaj pes tsawg leeg zoo li gabbro.
Ib yam li ntawd, qhov streak ntawm basalt yog dab tsi? Basalt muaj nyob rau hauv cov xim dub, xim av, lub teeb rau tsaus grey xim. Cov streak ntawm ib lub pob zeb yog cov xim ntawm cov hmoov uas tsim thaum nws raug rub hla ib qho chaw tsis muaj huab cua. Cov streak ntawm Basalt yog dawb rau grey.
Ib tug kuj yuav nug, dab tsi cov ntsiab lus nyob rau hauv Basalt?
Basalt. Basalt yog cov pob zeb uas muaj xim daj-xim av uas muaj calcic plagioclase (feem ntau labradorite), clinopyroxene (augite) thiab hlau ore (titaniferous magnetite). Basalt kuj tseem muaj olivine, quartz, hornblende, nepheline, orthopyroxene, thiab lwm yam. Basalt yog volcanic sib npaug ntawm gabbro.
Puas yog Basalt muaj cleavage?
Basalt feem ntau yog ua los ntawm cov ntxhia oblivine, uas muaj tsis muaj kev tawg los yog dav hlau tsis muaj zog. Qhov thib ob ntau tshaj ntxhia yog pyroxene, uas muaj 90-degree kev tawg thiab tawg yooj yim. Plagioclase, uas feem ntau yog lub teeb rau tsaus grey xim, thiab muaj 90-degree cleavage thiab cov tsos mob tshwm sim vim pob txha.
Pom zoo:
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